Sanding and polishing apparatus.



H. VERWER. v SANDING AND POLISHING APPARATUS.

APPLICATION FILED SEPT. 30, 1915. 1 ,1 91 ,045. v Patented July 11, 1916.

2 SHEETS-SHEET l.

H. VERWER.

SANDING AND POLISHING APPARATUS. APPLICATION FILED SEPT-30. 1915.

1,191,045. Patented July 11, 1916.

2 SHEETS-SHEET 2.

Witness? affoulg rarer ere.

HARRY VERWEE, OF PACIFIC GROVE, CALIFORNIA.

SANDING AND POLISHING APPARATUS.

i ,ini

Application filed September 30, 1915.

To all whom it may concern Be it known that I, l'lARRY Vnnwnn, a citizen of the United States, residing at Pacific Grove, in the county of Monterey and State 6f California, have invented. certain new and useful Improvements in Sanding and Polishing Apparatus, of which the following is a specification.

The invention relates to a. sanding and polishing apparatus.

The primary object of the invention is the provision. of an apparatus of this character, wherein a table top, bureau, or other article of furniture or piece of work, can be brought into position, so that the surface thereof can be thoroughly sandpaper-ed or polished in a convenient manner with despatch, without requiring the hand sanding or polishing of the same.

Another object of the invention is the prouision of an apparatus of this character, wherein the construction thereof is novel in form, to assure uniform sanding or polishing of the work, without requiring manual labor for this purpose.

A further object of the invention is the provision of an apparatus of this character, wherein the support for the work is readily and easily adjusted for the proper positioning of said work relative to the sanding or polishing belt, which. is driven by suitable motive power, the support being movable and is detachable from its carriage, so that large pieces of work may be handled for the sanding and polishing thereof. automatically.

A still further object of the invention is the provision of an apparatus of this charactor, wherein the sanding or polishing belt is properly tcnsioned for the successful working of the same.

A still further object of the invention is the provision of an apparatus of this character, wherein face or drum sanding can be effected automatically, the structure being composed of few parts, which are readily accessible, so that the same can be repaired or replaced with despatch.

A still further object of the invention is the provision of an apparatus of this character, which is simple in construction, thoroughly reliable and eflicient in operation, strong, durable, positive in act-ion, and inexpensive in. n'ianufacture.

With these and other objects in view, the

' invention consists in the features of con struction, combination and arrangement of Specification of Letters Patent.

Patented July 11, 1916.,

Serial No. 53,296.

parts as will be hereinafter fully described,*

illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the accompanying drawings: Figure 1, s a front elevation of a sanding and polishing apparatus constructed in accordance with the invention. Fig. 2, is an end elevation thereof. Fig. 3, is a vertical transverse sectional View on the line 33 of Fig. 1. Fig. 4, is a sectional view on the line 4-4 of Fig. 1. Fig. 5, is a sectional view on the line 55 of Fig. 2, looking in the direction of the arrow. F ig. 6, is a top plan View of the support, showing the stop for the work.

Similar reference characters indicate corresponding parts throughout 'the several views in the drawings.

Referring to the drawings, in detail, 10,

designates a pair of spaced vertical uprights or posts, which are suitably fastened in a foundation or flooring, and have thereon at- 14, respectively, while bolted or otherwise secured to, the uprights or posts are end pieces 15, carrying upper and lower spaced parallel longitudinal bars 16, and 17 constituting a frame, for a purpose presently described. 1

Formed centrally in the longitudinal bars 16, and 17, are vertically alined guide notches 18, having movably mounted therein a slide 19, which is held in place through the medium of bridge plates 20, suitably fixed to the said bars, the slide being formed with a vertically disposed elongated slot 21, in which is movably mounted a stud shaft 22, having journaled thereon a belt tightening or tensioning pulley 23, the shaft being ad justably secured in the slot 21', by means of 3' am nuts 24,, threaded on the shaft 22. Trained over the pulleys 1,3, and 14, and tensioning pulley :23, is a sanding or polishing belt 25, which. is of the endless type.

Formed on the lower end ofthe slide 19, is an ear 26, in which is swiveled an adjusting screw 27, the same being threaded in the lower bar 17, and is formed at its outer end with a hand wheel 28, which permits the convenient turning of the screw for the vertical adjustment of the slide to shift the ten sioning pulley 23, whereby the belt 25, can. be tightened or slackened.

The pulley wheel 14, is formed" with a parallel track rails 31, having upwardly 45, in which is swiveled an adjusting screw curled ends 32, forming abutments for the traction rollers 33, of, a movable carriage 34, guided by the trackrails, for bringing the work in position and away from the sanding or polishing belt 25, when the apparatus is in operation.

Detachably mounted uponthe carriage 34, is a work support comprising a bed or top 35, elevated upon pivotally connected cross legs 36, and-37, respectively,-said legs 36, being hinged at 38, to the carriage 34, while connected to the lower ends of the legs 37, are flexible bands 39, which'are also cqn. nected to a Windlass 40, journaled on the legs 36, and this Windlass has secured thereto a latch arm 41, and a handle or lever 42,

respectively, the arm 41, bein designed to engage with a keeper pin 43, adapted for engagement in any one ofa series'of holes 44, formed in one of the legs 37 for locking the latch arm 41, in adjusted positionto hold the flexible bands 39, partially or wholly wound on or unwound from the Windlass, whereby the bed or top 35, will be held in position relative to the sanding or polishing belt 25, for supporting the work to be acted upon thereby.

Mounted upon the legs 37 is a cross bar 46, threaded in a triangular shaped brace 47 pivoted to the legs 36, and'on" turning this screw 46, the legs can be moved relative to each other for raising or lowering the support for the work.

Detachably mounted on an extension of the shaft carrying the pulley13, is a sanding drum 48, whereby bore or cylinder sanding may be effected in aconvenient manner.

On the other shaft carrying the pulley 14, V

isa driving pulley "15, which is connected in any desirable manner with suitable motive power for imparting motion to the apparatus. A

Adjustably mounted on' tl'ie bcd or top 35 to lie-across the upper face thereof is a bar forming stop 49, with' which engages the work to prevent slipping thereof when acted upon by the sanding o,r polishing belt 25, in

the operation of the apparatus.

Connected to the upper and lower bars 16, and 17, is a vertical bar 50, to which is pivoted a rocking arm 51, having a forked front end. 52, straddling. the slide 19, which the bar 50, and in this manner the tensioning pulley 23, is automatically adjusted to vary the tension of the sanding or polishing belt 25, the screw 27, being detached .from

the slide when said counter-weight is active.

On the uprights 10, is mounted a horizontal guide rail 57, on which travels back and forth a hand operated pad 58, for holding the belt 25, engaged with the work on the support therefor.

It will of course be understood that when large work is to be sanded or polished the support is removed from the carriage for the placing of the same thereon, while the small work is placed upon the support when mounted on the carriage.

From the foregoing it is thought that the construction and manner of operation of the apparatus will beclearly understood, andtherefore a more extended explanation has been omitted. A

What is claimed is 1.In an apparatus of the class described, the combination witha sanding belt, of a track arranged at right angles tothe belt, a carriage movable over the track, a work supporting bed, pivotally connected legs carrying the bed, means detaehably connecting a pair of the legs to the carriage, and means for acting upon the other pair of legs to change the relative position of both pairs thereof for raising and lowering the bed.

2. In an apparatus of the class described,

the combination with a sanding belt and opcrating mechanism, of a track arranged at right angles to the belt, a carriage movable upon said track, two pairs of crossed legs, one of said legs of each pair being hinged to the carriage, means for limiting the spreading of, each pair of legs, awork support carried by the legs, and manually operable means for controlling the legs to raise or lower the work support relatively to the belt.

3. In a sanding and polishing apparatus,

the combination. with a sanding belt, of a work supporting mechanism, including a track disposed at right angles to the belt, a carriage upon the track, two pairs of cross legs, one leg of each pair being hingedly connected to the carriage, a yoke connected to the upper ends of two of the legs, a rod connected to the upper ends of the remaining two legs, atable mounted upon the legs, and an adjusting screw connected to both the yoke and the rod, whereby the two pairs of legs are moved to vary the height of the table relatively to the belt.

4. In a sanding and polishing apparatus,

the combination with a sanding belt, of a work supporting mechanism, including a track disposed below and at right angles to the belt, a carriage upon the track, two pairs of cross legs, the lower end of one leg ofa lever and latch mechanism for the rod,

whereby both windlasses are wound or released to vary the spread of the legs and the height of the table. V

5. In a sanding and polishing apparatus, the combination with a sanding mechanism,

of a work supporting mechanism, including a track, a carriage .n unted upon the track, a table having two pairs of cross legs, one" leg of each pair being hingedly connected to the carriage, a rod connected to the lower 'end of one leg of each pair, two windlasses carried by the rod, twoflexible connections,

one to each Windlass, each connection connecting lts Windlass to the other leg of its pair, a lever and latch mechanism for operating the rod and both windlasses, a yoke connected to the upperend of one leg of each pair, a rod connected to the upper end of the remaining leg, and a-manu'ally operable screw mounted in the rod and yoke for moving the upper ends of the legs to and from each other to vary the height otthe table.

In testimony whereof I afiix my signature.

HARRY VERWEER; 

